diff --git a/KafkaUdn/requirements.txt b/KafkaUdn/requirements.txt
index e4cc17e..c802353 100644
--- a/KafkaUdn/requirements.txt
+++ b/KafkaUdn/requirements.txt
@@ -11,7 +11,7 @@ gevent==1.1.1
 greenlet==0.4.15
 idna==2.7
 itsdangerous==0.24
-Jinja2==2.10
+Jinja2==2.11.3
 MarkupSafe==1.0
 PyYAML==3.11
 requests==2.19.1